This is an 89 Chevy Caprice station wagon with the 307 engine (olds
engine used in chevy). It has the 3 speed automatic trans with
overdrive. (some refer to it as a 4 speed, I guess).
It is always dripping transmission fluid. Not just when I drive it,
but even when its parked. It's not pouring out, just a constant drip
maybe one drop per hour (since I was just working on the exhaust
system, I got to watch the drops.
It is NOT the pan gasket. I already changed that thinking that was
the culprit. Its also NOT dripping from the cooler lines, nor around
the dipstick tube. The drip is coming out from the plastic cover that
is beneath the torque converter. I have not yet pulled that cover
off. I thought I'd ask about this first and see what others say about
I talked to a mechanic at a local Chevy dealer. Of course he told me
to bring it in, and would not tell me much more, except to say that
the front seal on the trans (where the shaft enters it), is probably
leaking. OK, I know about front and rear seals. I have never changed
a front one, but have done a few rear ones on other cars. While I am
no mechanic, I do know more than the average guy about cars. Correct
me if I am wrong, but I do not believe the fluid level is high enough
inside the trans to keep dripping when the car is parked. Yet it
continues to drip even if the car sits for several weeks and is not
used (this is a spare car only). So, how can it keep dripping when
the car is not used?
Assuming I am correct about this, there must be some other place thats
leaking, possibly the torque converter itself. But what or where?????
Can anyone please advice me what to look for.....
Has anyone had this same problem?
Sorry, I do not know the "name" of the transmission, but I did look it
up once and I believe there was only one type of overdrive used in GM
in the 80's.
I'd greatly appreciate any help. It only costs me a quart of ATF
every 2 to 3 weeks, but it's annoying and makes a big mess on the
driveway. I'm hoping it's just something simple, but automatic
transmissions are one of the things I know the least about on a car.